On Sun, Mar 9, 2014 at 10:46 AM, Da Huang <dhuang...@gmail.com> wrote: > Thanks a lot. That's very helpful. > > I think you get exactly what I mean about the LUCENE-4396. > By grouping up the MUST clauses, the conjunctive query can be > done specifiedly with easy way. Then, the original query would have > no more than 1 MUST clause. I think in this situation, it's much more > easier to judge whether to use BooleanScorer or BooleanScorer2. :)
Well, because we now have the DISI.cost() method, we can use this to find the least-cost MUST clause (e.g. the one matching the fewest documents) and then make a call up front on whether BS or BS2 is appropriate. But these would all be fun ideas to explore under a GSoC project, if we can scope it appropriately. Mike McCandless http://blog.mikemccandless.com --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org
